Tube frame for axminster looms



June 2, 1931. v, PAYNE 1,807,748

V TUBE FRAIIE FOR AXMINSTER LOOMS Filed Dec. 5, 1929 FIG.I

J/vv NTUIR 35; L75 cAR'T PA YNE MFMQQ M ATTORNEYS Patented June 2, 1931 UNITED 's'ra'res PATENT OFFICE OSCAR V. PAYNE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR T CROMPTON 8: KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS TUBE FRAME FOR AXMINSTER LOOMS Application filed December 5, 1929.

This invention relates to tube frame hangers such as may be employed in Axminster engaging hook which is slidable on the tube frame and substantially rigid for the purpose of-aifording a durable and strong connection between the tube frame and its'supporting chain.

Tube frames of Axminster looms are ordinarily suspended between travelling chains and are held to them by means of some form of hook. One by one the tube frames are released from the chains by means of a pair of clutches which first move inwardly to release the tube frame and then downwardly carry the same to cloth forming position.

The chains are trained over a series of sprockets with the result that in certain 100811310115 the tube frames hang below and in other positions are supported above the chains. It isan important object of my present invention to provide a connection between the tube frame and the chain including a slidablehook which has sliding engagement with the supporting bar of the tube frame and is urged outwardly by a resilient element carried by the bar.

It is a furtherobject of my present invention to provide the supporting hook with ears having sliding engagement with the interior of a tubular bar, said ears being spaced to provide room for a spring which may if desired be guided by a tongue formed as part of the hook.

It is a further object of my invention to provide an improved form of sliding rigid hook or chain engaging "latch for my Axminster tube frame. 7

With these and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims. I

In the accompanying drawings wherein a convenient embodiment of my invention is set forth, 1

Fig. 1 is a front elevation of one end of a tube frame and clutch showing the latter Serial No. 411,934.

prior to engagement with the tube frame, certain parts being in section,

Fig. 2 is a view similar to a portion of Fig. l but with the clutch in tube frame supporting position, r

Fig. 3 is a perspective View of the bracket which is inserted in the tubular bar,

Fig. l is a fragmentary perspective View of the lower part of the hook member,

Fig. 5 is a detail vertical section on line 55 of Fig. 1, and

Fig. 6 is a perspective view of the hook in one stage of its manufacture.

Referring to Figs. 1 and 2, I have shown a bar 10 preferably tubular and having yarn tubes 11 secured thereto. The tube frame bracket'comprises a spool bearing element 12 to support the spool S and having a horizontal arm 13 extending along the upper wall of the tubular bar and secured thereto by means of a screw 14. The bracket comprises also a chain engaging element 15 hav- 1 ing a prong 16 to extend between the links 17 of the chain which as shown in Figs. 1 and 2 is out of longitudinal alignment with the tubular bar 1.0. The lower portion of the element 15 has an arm 18 which extends into the tubular bar and is secured thereto by means of screws 19. The screws 14; and 19 are preferably located midway between the vertical walls of the tube frame for a'reason to be set forth hereinafter, and extend through ofiset portions 28 of the arms; 'A friction pad 20 carried on the leaf spring 21 secured to the tube frame may engage the head of the spool to resist excess rotation of the latter.

The clutch C is provided with a vertical body 22 from the lower portion of which eX- tends a lip 28 having an inwardly and downwardly extending cam surface 24. Side 7 wings on the clutch together with the lip mon construction and forms no part of my present invention, the bottom of the tube frame usually being slightly lower than the top of the surface 2d so that as the clutch moves inwardly the tube frame will be raised a small amount.

My present invention relates particularly to the chain engaging hook H and I form the latter preferably though not necessarily of a single piece of metal having an upper bent end to extend over one of the links 17 and having a downwardly and somewhat inwardly inclined lifting portion 31. The lower end of the hook is formed with a relatively wide web 32 from the upper and lower portions of which extend pairs of spaced guide ears and 3%, respectively. These pairs of cars are parallel and positioned to engage, respectively, the arms 13 and 18, previously described. The screws already referred to lie between the paths of travel of the ears, as shown in Fig.

Projecting centrally with respect to the ears is a tongue 35 substantially parallel to the arms 13 and 18 and having the inner or left hand end as viewed in Fig. 1 slidably mounted through upper and lower notches 36 and 37, respectively, formed in the opposite vertical ends 38 and 39, respectively, formed as integral continuations of the arms secured to the tubular bar.

A compression coil spring 40 surrounds the tongue and is interposed between the ends 38 and 39 at the left and the web 32 at the right as shown in Fig. 1. The effect of the spring is to hold the hook member to the right so that the end 30 may either actually engage or be very close to the prong 16. The parts are preferably so formed that the web 32 under these conditions will also lie against the vertical portion of the chain engaging element 15. The spring is positioned to some extent by the ears and held by them away from the screws and offset portions 28 of th arms.

The clutch C has extending therefrom a stud 41 adapted to pass through a slot 42 formed in the chain engaging element. It is preferable to have the bottom of the slotin engagement with the stud when the parts are in the position shown in 2. So far as movement of the hook is concerned, I find that it is not necessary to use the stud. The upper portion of the clutch may engage the hook and slide the same in a direction parallel to the bar.

The manner of forming the hook is indicated in Fig. 6, where it will be seen that a strip of sheet metal of substantially the width of the arms 13 and 18 is sheared to form the ears previously described. The upper ears may be of substantial length limited by the distance between the hooked end 30 and the web 32. After shearing the upper pair of ears may be bent around the dot and dash lines 50, while the lower cars 34 are bent around lines 51. The tongue 35 is bent around the line 52 to lie between the upper and lower ears. The tongue, when bent to position, provides clearance for the lower screws 19 and associated offsets 28, while the lifting portion 31 of the hook, remaining vertical, permits clearance for the upper screw id and its offset.

As the clutch is moved in its initial or longitudinal motion toward the tube frame the lip will engage the bottom of the bar to lift it a slight amount for the purpose of relieving the hook of the strain of supporting the tube frame. Continued inward motion of the clutch will bring about a movement of the rigid hook toward the spool until the end 30 is out of vertical alignment with the chain, after which the customary downward n1otion of the clutch may take place to move the tube frame toward cloth forming position.

It will be noted that the upper cars 33, although lying within the tube frame and vertically supporting the weight of the latter, are nevertheless not far removed from a position of vertical alignment with the chain, and it is these ears which support the weight of the tube frame when hanging from the chain. It will also be seen that the ears are spaced sufliciently to permit the spring 4:0 to pass therebetween, the spring by reason of this construction being of sufficient length to preyent improper deformation during the releaslng operation. Furthermore, it will be seen that the web may be engaged by the stud, although this operation is not necessary. Also, the ears are so placed as to avoid interference with the screws which hold the bracket to the tube frame. I do not wish to be held to the use of the tongue as a necessary aid in guiding the hook as it slit es, the ears may be made long enough to perform this function. i

Having thus described my invention it will be seen that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of theinvention and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. In a tube frame for an Axminster loom operating with a transporting chain, a longitudinal bar out of alignment with the chain, a bracket carried by the bar and having a portion to support a spool. and also a portion to engage the chain, a pair of spaced parallel arms formed as parts of the bracket, a rigid hook slidably mounted on the tube frame and having an upwardly extending chain engaging hook by which the tube frame is supported on the chain, said hook having at the lower end thereof spaced guide ears to slide between and be guided by the arms, and resilient means to hold the hook normally in chain engaging position.

12; In a tubeframe for an Axminsterlooni operating with a transporting chain, a 1011- gitudinal bar out of alignment with 'the chain, a bracket carried by the bar and havframe and having an upwardly extending 1o portion to overhang the-chain to support the tube frame, the lower portion of the hook having spaced horizontal guide ears lying between and having sliding relation with the arms, and resilient" means disposed between and positioned by the ears to hold the hook normally in chain engaging position.

3. In a tube frame for an Axminster loom operating with a transporting chain, a longitudinal bar out of alignment with the chain, a bracket carried by the bar and having a portionto support a spool andalso a portion to engage the chain, a pair of spaced parallel arms formed as parts of the bracket, a-rigid hook slidably mounted on the tube frame and having an upwardly extending portion to overhang the chain to support the tube frame, tlre lower portion of the hook having spaced horizontal guide ears lying between and having sliding relation with the arms, and resilient means disposed between and positioned by the ears to hold the hook normally in chain engaging position, one end of said resilientmeans hearing against portions of thearms.

4. In a tube frame for an Axminster loom operating with a transporting chain, a hollow tubular bar out of horizontal alignment with the chain, a bracket having a substantially vertical portion extending across one end of the hollow bar and having also spaced horizontal arms inserted into the hollow bar,

and a rigid chain engaging hook extending transversely of the bar into engagement with the chain, said hook extending through the bracket and having guide portions extending into the bar to engage and have sliding relation with the spaced parallel arms, and re silient means to hold the hook normally in en gagement with the chain. a

5. Ina tube frame for an Axminster loom operating with a transporting chain, a hollow tubular bar out of horizontal alignment with the chain, a bracket having a substan tially vertical portion extending across one end of the hollow bar and having also spaced horizontal arms inserted into the hollow bar, and a rigid chain engaging hook extending transversely of the bar into engagement with the chain, said hook having guide portions extending into the bar to engage and have sliding'relation with the spaced parallela ans, and resilient means to hold the hook normally in engagement with the chain, the lower portion ofthe hook and guide portions lying within the space defined by the parallel arms and that'portion'of the'bracket whichextends across the end of-thehollow bar.

.6. Ina tube frame forzan Axminster loom operating with a transporting chain, a hollow tubularlbar out of horizontal alignment with the chain, a'bracket having a substantially vertical portion extending across one end of the hollow bar and having also spaced horizontal arms inserted into :the 'hollowbar, and a rigid chain engaging hook extending transversely of the bar into engagement with the chain, said hook having guide portions extending into the bar to'engage and have slid ing relation with the spaced parallel arms, and resilient means to hold the hook-normally in engagement with the chain lying between the guide portions, the lower portion ofthe hook and guide portions lying within the space defined by the parallel arms and that portion of the bracket which extends across the endof the hollow bar.

7. In. a tube frame for an Axminster loom operating with a transporting chain, a hollow tubular bar, a bracket secured to said bar and having a portion extending across the open end of the bar and having other portions extending transversely of the chain, a pair of spaced parallel arms formed as part of the bracket and located within the tube frame, a rigid hook having a lower portion extending into the tube frame and having an upper portion transverse of the bar extending into relation with the chain, that portion of the hook extending within the bar having integral therewith spaced parallel ears having sliding engagement with the parallel arms to guide the hook and causethe sameto have a right line motion with respect to the tube frame, and yielding means holding the hook normally in chain engaging position.

8. In a tube frame for an Axminster loom operating with a transporting chain, a hollow tubular bar, a bracket secured to said bar and having a portion extending across the open end of the bar and having other portions extending transversely-of'the chain, a pair of spaced parallel arms formed as part of the bracket and located within the tube frame, a rigid hook having a portion extending into the tube frame and having another portion extending transversely of the bar into engaging position with the chain, two spaced substantially parallel elements formed integral with the hook extending within the bar and having sliding relation with respect to the arms, and yielding means holding the hook normally in chain engaging position. v

9. In a tube frame for an Axmin'ster loom operating with a transporting chain, a hollow bar out of longitudinal alignment with the-chain, said tube frame having two spaced fixed parallel surfaces, a rigid hook extending transversely from the bar and having holding engagement with the chain, spaced surfaces rigid with the hook in engagement with the first named surfaces, the second named surfaces being slidable along the first named surfaces to cause the hook to have a right line motion with respect to the bar in a'direction away from the chain, a yielding meansresisting said right line motion and normally holding the hook in engaging position relatively to the chain.

10. In a tube frame for an Axminster loom operating with a transporting chain, a longitudinal bar out of alignment with the chain, a bracket 0: rried by the bar and having a portion to support a spool and also a portion to engage the chain, a pair of spaced parallel arms formed as parts of the bracket, a rigid hook having an upwardly projecting portion to engage the chain, said hook having a lower horizontal portion extending between the spaced arms and having sliding engagement therewith, and yielding means to hold the hook normally in engaging relation with the chain.

11. In a tube frame for an Axminster loom having a transporting chain, a hollow bar out of alignment with the chain, a rigid hook having portions slidable along interior surfaces of the bar and having a laterally extending chain engaging part, and yielding means to hold the hook in normal chain engaging position.

12-. A latch member for an Axminster tube frame formed of a hollow bar having spaced parallel sliding surfaces, said latch having an upwardly extending chain engaging hook to extend transversely of the bar, and parallel guide surfaces on the hook to extend inside the bar to engage and slide along the spaced parallel surfaces thereon.

18. A rigid supporting hook member for an Axminster tube frame having a longitudinal bar, said hook member having an upwardly extending chain engaging portion to lie over a transporting chain and having at the lower portion thereof spaced ears which are substantially parallel to the bar and disposed on opposite sides of the chain engaging portion to prevent twisting of the latter, the ears causing the latch to have a right line sliding motion.

14. A rigid supporing hook member for an Axminster tube frame having a longitudinal bar, said hook member having an upwardly extending chain enga ing portion to lie over a transporting chain and having at the lower portion thereof spaced ears which are substantially parallel to the bar and disposed on opposite sides of the chain engaging portion to prevent twisting of the latter, the ears causing the latch to have a right line sliding motion, and a tongue rigid with the hook member extending between the ears.

15. In a bracket for an Axminster tube frame having a hollow tubular bar, spaced parallel arms to fit within the bar, a hook or latch membed slidable on the bracket and having guide portions within the bar to engage and slide along the arms, said latch hav ing a portion extending laterally from the bar to engage the chain.

16. A bracket for an Axminster tube frame having a tubular carrier bar, said bracket being formed of a spool bearing member having an arm extending into and parallel to the bar and having the inner end thereof bent transversely of the bar, said bracket having a chain engaging member having an arm spaced from the first named arm extending within the bar parallel to the latter and having the end thereof bent transversely of the bar, said transverse ends being bent toward each other to define with one of said members a substantially closed loop, a supporting latch to engage a transporting chain having a portion extending outside the loop and transversely of the carrier bar, said latch having another portion extending inside the loop and confined within the latter and having sliding movement along the arms, and resilient means to hold the latch in normal chain engaging position.

17 A bracket for an Axminster tube frame having a tubular carrier bar, said bracket being formed of a spool bearin member having an arm extending into and parallel to the bar and having the inner end thereof extending transversely of the bar, said bracket having a chain engaging member having an arm spaced from the first named arm extending within and parallel to the bar and having the end thereof extending transversely of the bar, said transverse ends being bent toward each other to define with one of said parts a substantially closed loop, a latch to engage a transporting chain having a portion extending outside the loop and another portion extending inside the loop and confined within the latter and having sliding movement along the arms, and resilient means to hold the latch in normal chain engaging position, said members having aligning slots through which a portion of the hook extends.

18. A bracket for an Axminster tube frame having a tubular bar, said bracket having an upwardly extending chain engaging member, an arm formed integral with said member lying within and parallel to the bar and having an upturned end, means rigid with said member defining a second arm spaced from the first arm and lying within and parallel to the bar and having a downturn ed end, said member, arms, and turned ends forming a substantially closed loop, a rigid latch having a chain engaging portion extending trans 3 versely of the bar outside the loop and having integral therewith bearing portions extending through said member into the loop, said portions located within the loop having sliding engagement with the arms, and resilient means to hold the hook in normal chain engaging position.

19. A bracket for an Axminster tube frame having a tubular bar, said bracket having an upwardly extending chain engaging member, anarm formed integral with said member lying within and parallel to the bar and having an upturned end, means rigid with said member defining a second arm spaced from the first arm and lying within and parallel to the bar and having a downturned end, said member, arms, and turned ends forming a loop, a rigid latch having a chain engaging portion extending transversely of the bar outside the loop and having integral therewith bearing portions extending through said member into the loop, said bearing portions located within the loop having sliding engagement with the arms, and resilient 2 means to hold the hook in normal chain engaging position, said resilient means being housed within the loop.

20. A bracket for an Axminster tube frame having a tubular bar, said bracket having an upwardly extending chain engaging member, an arm formed integral with said member lying within and parallel to the bar and having an upturned end, means rigid with said member defining a second arm spaced from the first arm and lying within and parallel to the bar and having a downturned end, said member, arms. and turned ends forming a loop, a rigid-latch having a chain engaging portion extending transversely of the bar outside the loop and having integral therewith bearing portions extending through said member into the loop, said portions located within the loop having sliding engagement with the arms, resilient means to hold the hook in normal chain engaging position, and a tongue integral with the latch to guide the resilient means, said tongue sliding between the bent ends of the arms.

21. I11 a tube frame for an Axminster loom 15 operating with a transporting chain, a hollow tubular bar out of longitudinal alignment with the chain, guide means rigid with the bar, a slide element movable on the guide means, a sliding hook rigid with the slide element and extending laterally from the bar to engage the chain, and a resilient member'surrounding the sliding element and located in the bar and acting on the sliding element to hold the hook normally in engagement with the chain, the hook deriving its chief support from the sliding element and guide means.

In testimony whereof I have hereunto affixed my signature. OSCAR V. PAYNE. 

